Prepare against Juan Nunez Alonso
Spain · World #41,351 classical · FIDE ID 2209144
When preparing against Juan Nunez Alonso, expect 1.e4 in 90% of White games. Against 1.e4 the reply is 1...e5 (82% of games); against 1.d4, 1...Nf6 (50%).
Our database contains 45 games by Juan Nunez Alonso, covering Oct 2008 to Jul 2026. Below you'll find Juan Nunez Alonso's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Juan Nunez Alonso before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,929 | 1,943 | Jan 2026 |
| Rapid | 1,933 | 1,933 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 45 | 12 | 6 | 27 | 26.7% |
| As White | 21 | 5 | 4 | 12 | 23.8% |
| As Black | 24 | 7 | 2 | 15 | 29.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Juan Nunez Alonso's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Juan Nunez Alonso's side.
First moves as White (21 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 19 | 90.5% | 36.8% |
| d4 | 2 | 9.5% | 0.0% |
Main lines as White
- 1.e4 — 90% of White games, 36.8% score
- …e5 (42% of these games) — Alonso usually continues Nf3 (37.5% score)
- …d5 (16% of these games) — Alonso usually continues exd5 (83.3% score)
- …c5 (16% of these games) — Alonso usually continues Nf3 (0.0% score)
- 1.d4 — 10% of White games, 0.0% score
- …d5 (100% of these games) — Alonso usually continues e3 (0.0% score)
As Black against 1.e4 (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 14 | 82.4% | 46.4% |
| c6 | 2 | 11.8% | 0.0% |
| d5 | 1 | 5.9% | 0.0% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 2 | 50.0% | 75.0% |
| d5 | 2 | 50.0% | 0.0% |
Juan Nunez Alonso's chess games
All 45 games by Juan Nunez Alonso in the Chess.ceo database (Oct 2008 - Jul 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 12 wins, 6 draws, 27 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C57 | Italian Game: Two Knights Defense | 3 | 2/0/1 | 66.7% |
| B01 | Scandinavian Defense: Main Line | 3 | 2/1/0 | 66.7% |
| A05 | Sicilian | 3 | 0/0/3 | 0.0% |
| A08 | King's Indian Attack | 2 | 0/1/1 | 0.0% |
| C42 | Petrov's Defense | 2 | 0/0/2 | 0.0% |
| D00 | Queen's Pawn Game | 2 | 0/0/2 | 0.0% |
| B06 | Nimzowitsch Defense | 1 | 0/1/0 | 0.0% |
| C48 | Four Knights Game: Spanish Variation | 1 | 0/0/1 | 0.0% |
| C50 | Italian Game | 1 | 1/0/0 | 100.0% |
| C53 | Italian Game: Classical Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C42 | Petrov's Defense | 8 | 4/1/3 | 50.0% |
| B18 | Caro-Kann: Classical | 2 | 0/0/2 | 0.0% |
| A03 | Bird's opening | 2 | 0/0/2 | 0.0% |
| C47 | Four Knights Game: Scotch Variation | 1 | 1/0/0 | 100.0% |
| C48 | Four Knights Game: Spanish Variation | 1 | 0/0/1 | 0.0% |
| C57 | Italian Game: Two Knights Defense | 1 | 0/0/1 | 0.0% |
| C36 | King's Gambit | 1 | 0/0/1 | 0.0% |
| E94 | King's Indian Defense: Orthodox Variation | 1 | 1/0/0 | 100.0% |
| E87 | King's Indian: Sämisch | 1 | 0/1/0 | 0.0% |
| E61 | Modern Defense | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Apr 2011 | Ramon Garcia Magadan | 2,046 | Mondariz Open 8th | C50 |
| Apr 2021 | Deva Estevez Sacristan | 1,932 | chT-Madrid | C42 |
| Aug 2009 | Manuel Alvarez Escudero | 1,876 | 26th Collado Villalba Open B | C47 |
| Nov 2009 | Vior Pablo Vidal Herrero | 1,542 | 13th Madrid San Viator Open | E94 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 13th Madrid San Viator Open | 2009 | 8 | 4 | 1,801 |
| Mondariz Open 8th | 2011 | 6 | 2.5 | 1,837 |
| 1st Madrid Oliver Gonzalez Memorial | 2010 | 6 | 1.5 | 1,964 |
| ch-Madrid U18 | 2006 | 5 | 0 | 1,262 |
| Madrid Open | 2007 | 5 | 1.5 | 1,731 |
| Madrid CDV Open 2nd | 2009 | 3 | 2 | 2,134 |
| ch-ESP U14 | 2008 | 3 | 0.5 | 1,579 |
| 26th Collado Villalba Open B | 2009 | 3 | 1 | 1,756 |
Interactive opening tree from all 45 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Juan Nunez Alonso's chess games?
45 games by Juan Nunez Alonso, from Oct 2008 to Jul 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Juan Nunez Alonso has played.
What does Juan Nunez Alonso play on the first move as White?
Across 21 games with White in our database, Juan Nunez Alonso opens with 1.e4 (90% of games), 1.d4 (10% of games). Against 1.e4 as Black, Juan Nunez Alonso answers 1...e5 (82% of games), 1...c6 (12% of games), 1...d5 (6% of games). Against 1.d4: 1...Nf6 (50% of games), 1...d5 (50% of games).
What openings does Juan Nunez Alonso play as White?
As White, Juan Nunez Alonso's most-played openings in our database are: Italian Game: Two Knights Defense (3 games, 66.7% win rate); Scandinavian Defense: Main Line (3 games, 66.7% win rate); Sicilian (3 games, 0.0% win rate). The full breakdown of 21 games with White is in the table above.
What openings does Juan Nunez Alonso play as Black?
As Black, Juan Nunez Alonso most often plays: Petrov's Defense (8 games, 50.0% win rate); Caro-Kann: Classical (2 games, 0.0% win rate); Bird's opening (2 games, 0.0% win rate). See the table above for the top ten Black openings across 24 games.
What is Juan Nunez Alonso's FIDE rating?
Juan Nunez Alonso is currently rated 1,929 in classical chess, 1,933 in rapid. Peak classical rating: 1,943 (Jan 2026).
How many games has Juan Nunez Alonso played?
Our database contains 45 games by Juan Nunez Alonso, covering Oct 2008 to Jul 2026. Overall record: 12 wins, 6 draws, 27 losses (26.7% win rate).
How do I prepare against Juan Nunez Alonso?
45 games by Juan Nunez Alonso reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.